"POST", createRequestUri(pattern, count));
request.setEntity(null);
Future<HttpResponse> future = this.executor.execute(
new BasicAsyncRequestProducer(target, request),
new BasicAsyncResponseConsumer(),
this.connpool);
HttpResponse response = future.get();
Assert.assertNotNull(response);
Assert.assertEquals(HttpStatus.SC_BAD_REQUEST, response.getStatusLine().getStatusCode());